Carthage Firebase.framework does not contain bitcode.

[mpaulsonco]

When installed through Carthage, Firebase.framework/Firebase' does not contain bitcode.

My Environment

• Xcode version: 9.2
• Firebase SDK version: 4.9.0 (Carthage)
• Firebase Component: Core, Analytics, Messaging
• Component version: 4.9.0

Steps to reproduce:

1. Install Firebase from Carthage following the steps outlined in the guide.
2. Try and build to a physical device or create an Archive
3. Encounter error:

ld: '........../Carthage/Build/iOS/Firebase.framework/Firebase' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. file '........./Carthage/Build/iOS/Firebase.framework/Firebase' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Additional Details:

• This is only a problem with Firebase.framework (the other Carthage-installed dependencies I have in the same project do not have this issue)

[paulb777]

@mpaulsonco Thanks for the report! The Firebase.framework is only needed to provide build time access to the Firebase module and Firebase.h. It is not needed for linking. Thus a workaround is to delete Firebase.framework from the Link Binary With Libraries Build Phase.

I'll leave this open until I make this requirement clearer in the documentation or update the Firebase framework.

[mpaulsonco]

@paulb777 I can confirm this solved it for me, thanks!

[npocmo]

Hello!

I run into same issue, so I also deleted Firebase.framework from the Link Binary With Libraries Build Phase.

I am still getting errors like:
Ld .../Library/Developer/Xcode/DerivedData/CarthageFirebaseTest-gcmfvqeteiovpadbjrrhdofxjsbi/Build/Products/Debug-iphoneos/CarthageFirebaseTest.app/CarthageFirebaseTest normal arm64 cd .../carthage_firebase_test/CarthageFirebaseTest

Undefined symbols for architecture arm64: "___cxa_guard_acquire", referenced from: leveldb::crc32c::Extend(unsigned int, char const*, unsigned long) in leveldb-library(crc32c.o) "___cxa_guard_abort", referenced from: leveldb::crc32c::Extend(unsigned int, char const*, unsigned long) in leveldb-library(crc32c.o) ...

I tried to add additional Linker Flags, which were suggested in another threads and also added libraries like "libicucore.dylib" but it didnt helped. I am only getting different errors.

I am using Xcode 9.2 and macOS Sierra 10.12.6.

@paulb777, Do you have any suggestion to fix this problem?

[paulb777]

@npocmo Try adding libc++ to the Link Binary With Libraries Build Phase.

[npocmo]

libc++ resolved some errors, but not all of them. I also added libssqlite3.tbd and some others libraries which helped but I still couldnt build my sample project successfuly.

After a while I decided to only use frameworks I absolutely needed and for a build to be successful.

And it worked.

[unixb0y]

I would like to mention that I had this error:

This is the content of my Cartfile:

binary "https://dl.google.com/dl/firebase/ios/carthage/FirebaseAnalyticsBinary.json"
binary "https://dl.google.com/dl/firebase/ios/carthage/FirebaseMessagingBinary.json"

I resolved it by adding "StoreKit" in "Link Binary With Libraries":

[paulb777]

@unixb0y Thanks for sharing. I've seen another report that this same issue was resolved by rm -rf ~/Library/Developer/Xcode/DerivedData/ . Presumably the Xcode ModuleCache wasn't properly updating.

[unixb0y]

@unixb0y Thanks for sharing. I've seen another report that this same issue was resolved by rm -rf ~/Library/Developer/Xcode/DerivedData/ . Presumably the Xcode ModuleCache wasn't properly updating.

You're right! No need for StoreKit, then 😊 I was just following the error message, but the classic "clean caches" worked too, thanks man 👍

[reggian]

@paulb777 Thank you for putting an effort into Carthage solution. Much appreciated.
But there is a problem combining Firebase with Crashlytics.
After I add the Crashlytics/Fabric frameworks I get the error:

Could not find auto-linked framework 'Firebase'

Any ideas here?

[paulb777]

@reggian From https://github.com/firebase/firebase-ios-sdk/blob/master/Carthage.md, Delete Firebase.framework from the Link Binary With Libraries Build Phase.

[reggian]

@paulb777 I forgot to mention, I did and Firebase alone works 👍
But after I add the Crashlytics/Fabric frameworks I get the error:

Could not find auto-linked framework 'Firebase'

I do not know if things are related, since I can not add the Firebase.framework due to the bitcode error I can not test.

The full log:

ld: warning: Could not find auto-linked framework 'Firebase'
Undefined symbols for architecture arm64:
  "vtable for __cxxabiv1::__vmi_class_type_info", referenced from:
      typeinfo for std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for __cxxabiv1::__class_type_info", referenced from:
      typeinfo for std::__1::__basic_string_common<true> in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "typeinfo for std::exception", referenced from:
      GCC_except_table1 in Crashlytics(CLSException.o)
      typeinfo for std::exception const* in Crashlytics(CLSException.o)
  "typeinfo for std::bad_alloc", referenced from:
      GCC_except_table1 in Crashlytics(CLSException.o)
  "typeinfo for char const*", referenced from:
      _CLSExceptionRaiseTestCppException in Crashlytics(CLSException.o)
      GCC_except_table1 in Crashlytics(CLSException.o)
  "___cxa_begin_catch", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
      ___clang_call_terminate in Crashlytics(CLSException.o)
  "std::get_terminate()", referenced from:
      _CLSExceptionCheckHandlers in Crashlytics(CLSException.o)
  "vtable for __cxxabiv1::__pointer_type_info", referenced from:
      typeinfo for std::exception const* in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "___cxa_throw", referenced from:
      _CLSExceptionRaiseTestCppException in Crashlytics(CLSException.o)
  "___cxa_current_exception_type", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "___cxa_rethrow", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "___cxa_end_catch", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "std::set_terminate(void (*)())", referenced from:
      _CLSExceptionInitialize in Crashlytics(CLSException.o)
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "___cxa_allocate_exception", referenced from:
      _CLSExceptionRaiseTestCppException in Crashlytics(CLSException.o)
  "std::terminate()", referenced from:
      ___clang_call_terminate in Crashlytics(CLSException.o)
  "___cxa_demangle", referenced from:
      +[CLSDemangleOperation demangleCppSymbol:] in Crashlytics(CLSDemangleOperation.o)
  "___gxx_personality_v0", referenced from:
      +[CLSDemangleOperation demangleBlockInvokeCppSymbol:] in Crashlytics(CLSDemangleOperation.o)
      -[CLSDemangleOperation main] in Crashlytics(CLSDemangleOperation.o)
      ___28-[CLSDemangleOperation main]_block_invoke in Crashlytics(CLSDemangleOperation.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Also there is no error if I "forget" to add the $(OTHER_LDFLAGS) -ObjC flags. But then obviously Firebase does not work.

[paulb777]

It looks like missing the Firebase framework is only a warning. The error is not linking the C++ library. See #911 (comment) above.

[reggian]

@paulb777 I am sorry I missed that and have wasted your time.
Thanks a lot for your help and patience.